<template>

  <a-layout>
    <a-layout-content
        :style="{ background: '#fff', padding: '24px', margin: 0, minHeight: '280px' }"
    >

      <p>
        <a-form layout="inline" :model="param">
          <a-form-item>
            <a-button type="primary" @click="handleQuery()">
              查询
            </a-button>
          </a-form-item>
          <a-form-item>
            <a-button type="primary" @click="add()">
              新增
            </a-button>
          </a-form-item>
        </a-form>
      </p>
      <a-table
          :columns="columns"
          :row-key="record => record.id"
          :data-source="level1"
          :loading="loading"
          :pagination="false"
      >
        <template #cover="{ text: cover }">
          <img v-if="cover" :src="cover" alt="avatar" />
        </template>
        <template v-slot:category="{ text, record }">
          <span>{{ getCategoryName(record.category1Id) }} / {{ getCategoryName(record.category2Id) }}</span>
        </template>
        <template v-slot:action="{ text, record }">
          <a-space size="small">
            <a-button type="primary" @click="edit(record)">
              编辑
            </a-button>
            <a-popconfirm
                title="删除后不可恢复，确认删除?"
                ok-text="是"
                cancel-text="否"
                @confirm="handleDelete(record.id)"
            >
              <a-button type="danger" >
                删除
              </a-button>
            </a-popconfirm>

          </a-space>
        </template>
      </a-table>

    </a-layout-content>
  </a-layout>

  <a-modal
      title="分类表单"
      v-model:visible="modalVisible"
      :confirm-loading="modalLoading"
      @ok="handleModalOk"
  >
    <a-form :model="category" :label-col="{ span: 6 }" :wrapper-col="{ span: 18 }">
      <a-form-item label="名称">
        <a-input v-model:value="category.name" />
      </a-form-item>
      <a-form-item label="父分类">
        <a-select
            v-model:value="category.parent"
            ref="select"
        >
          <a-select-option :value="0">
            无
          </a-select-option>
          <a-select-option v-for="c in level1" :key="c.id" :value="c.id" :disabled="category.id === c.id">
            {{c.name}}
          </a-select-option>
        </a-select>
      </a-form-item>
      <a-form-item label="顺序">
        <a-input v-model:value="category.sort"></a-input>
      </a-form-item>
    </a-form>
  </a-modal>

</template>
<script lang="ts">
import { defineComponent, onMounted, ref } from 'vue';
import axios from 'axios';
import {message} from "ant-design-vue";
import {Tool} from "@/util/tool";


export default defineComponent({
  name: 'AdminCategory',
  setup() {
    const param = ref();
    param.value = {};
    const categorys = ref();

    const loading = ref(false);

    const columns = [

      {
        title: '名称',
        dataIndex: 'name'
      },
      {
        title: '父分类',
        key: 'parent',
        dataIndex: 'parent'
      },
      {
        title: '顺序',
        dataIndex: 'sort'
      },
      {
        title: 'Action',
        key: 'action',
        slots: { customRender: 'action' }
      }
    ];

    /**
     * 一级分类树，children属性就是二级分类
     * [{
     *   id: "",
     *   name: "",
     *   children: [{
     *     id: "",
     *     name: "",
     *   }]
     * }]
     */
    const level1 = ref(); // 一级分类树，children属性就是二级分类

    /**
     * 数据查询
     **/
    const handleQuery = () => {
      loading.value = true;

      //如果不清空现有数据，则编辑保存重新加载数据后，再点编辑
      level1.value = [];

      axios.get("/category/all" ).then((response)=>{

        loading.value = false;
        const data = response.data;
        if(data.success)
        {
          categorys.value = data.content;
          console.log("原始数组：", categorys.value);

          level1.value = [];
          level1.value = Tool.array2Tree(categorys.value, 0);
          console.log("树形结构：", level1);
        }
        else
        {
          message.error(data.message);
        }
      });
    };


    onMounted(() => {
      handleQuery();
    });

    // -------- 表单 ---------
    const category = ref({});
  const modalVisible = ref(false);
  const modalLoading = ref(false);
  const handleModalOk = () => {
    modalLoading.value = true;

    axios.post("/category/save" ,category.value).then((response)=>{
      modalLoading.value=false;
      const data = response.data; //data = commonResp

      if(data.success)
      {
        modalVisible.value = false;
        modalLoading.value = false;

        //重新加载列表
        handleQuery();
      }
      else
      {
        message.error(data.message);
      }

    });
  };
    /**
     * 编辑
     */
    const edit = (record: any) => {
        modalVisible.value = true;
        category.value = Tool.copy(record);
    };

    /**
     * 新增
     */
    const add = () => {
      modalVisible.value = true;
      category.value = {};
    };

    const handleDelete = (id: number) => {
      axios.delete("/category/delete/" + id).then((response) => {
        const data = response.data; //data = commonResp

        if(data.success)
        {
          //重新加载列表
          handleQuery();
        }
      });
    };

    return {
      param,
      //categorys,
      level1,
      columns,
      loading,
      handleQuery,

      edit,
      add,

      category,
      modalVisible,
      modalLoading,
      handleModalOk,

      handleDelete

    }
  }
});
</script>

<style scoped>
img {
  width: 50px;
  height: 50px;
}
</style>
